The 'Superbass' hitmaker has branded the 34-year-old rapper too dumb to write her raps after he alleged he was a ghostwriter for some songs on her album The Pinkprint.

On stage in Toronto on Tuesday night Nicki told the audience: "'Till this day I never stopped. See a bitch ass n**** can't write my raps. You know why? You don't have the heart or the mindframe or the motherf***ing intellect bitch n****.

Nicki looking hot on stage

"You don't even know how to pronounce these motherf***ing words in my motherf***ing rap, bitch."

In his track Lifeline, Safaree also dissed Nicki's new boyfriend Meek Mill.

He rapped: "This n**** bent outta shape with a gorilla face, my bars on The Pinkprint no one will ever match, my d**k print, little n****, you can never match ...

Nicki Minaj (Image: Getty Images)

"When you was pulling up, I was pulling out, I know real s**t I ain't gonna talk about, I seen the text messages, I seen the emails, somebody tell me why he's talking like a female."

The track also hints at Safaree's sadness that the relationship ended after over a decade.

Nicki Minaj says her ex Safaree Samuels cheated on her

He raps: "What a shame, it took a split for them to know I was your man, got so tired of hidin' it, head high with no pride in it, guess I wasn't cool enough cause in our pictures we hidin' it.

"Twelve years up in flames, thought you woulda had my kid, year three got engaged, now we movin' out of rage. Woah. Deep stuff.